WASHINGTON — The landmark Supreme Court decision axing a majority-Black congressional district in Louisiana has intensified redistricting battles across the nation, rippling as far as Washington state. The ruling has renewed a Republican challenge to Washington’s new legislative districts while spurring some Democrats to seek new congressional boundaries. Following the April 29 Supreme Court decision, a group of Washington state Republicans asked a federal court to throw out the legislative map derived from Sotto Palmer v. Hobbs , which redrew districts in 2024 after ruling that Latino voting power had been diluted in the Yakima Valley and Pasco areas. “We believe it affects Sotto Palmer explicitly. It’s the same issues, it’s the same conclusions,” said Jim Walsh, the state GOP chair. The Supreme Court’s Louisiana decision confirmed “that race may not be used as a predominant factor considered in drawing legislative districts,” the Republican intervenors wrote in their motion filed this month.…